.App {
  text-align: center;
}

.App-logo {
  animation: App-logo-spin infinite 20s linear;
  height: 80px;
}

.App-header {
  background-color: #222;
  height: 150px;
  padding: 20px;
  color: white;
}

.App-title {
  font-size: 1.5em;
}

.App-intro {
  font-size: large;
}

@keyframes App-logo-spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/*下面是新添加的样式*/
* {
  margin: 0;
  padding: 0;
  list-style: none;
}

.content-box {
  overflow: hidden;
}

.nav {
  padding: 20px;
  float: left;
  width: 160px;
  background-color: #fcc;
}

.nav li {
  line-height: 30px;
}

.content {
  padding: 20px 0 0 200px;
  background-color: #ccf;
  height: 110px;
}

.mine-nav {
  background-color: #cfc;
  margin-top: 20px;
  height: 70px;
}

.mine-nav ul {
  overflow: hidden;
}

.mine-nav ul li {
  float: left;
  width: 50%;
}

.mine-nav > div {
  margin-top: 20px;
}
